Jitsu ni

Jitsu ni: (1) indeed (2) actually

実に -- adv.

Hint: This can also read as 'makoto ni'. See also jitsu wa

Jitsu wa

Jitsu wa: (1) as a matter of fact (2) to tell you the truth (3) honestly

実は　ーー expression, adv.

Hint: the kanji of jitsu itself already mean 'truth'. See also jitsu ni

Jikan

Jikan: (1) time (2) hours -- (for counter)


時間 -- adv.

Hint: when you said 'one hour, two hours', make it into 'ichi jikan, ni jikan'.

Test: try to translate 'boku no ita jikan' yourself. It is a drama title that you can check here. Or another drama title called 'Yasashii Jikan' on this link. Can you guess without checking the links?

Jidai

jidai: the next era
次代 -- n.

jidai: (1) era (2) period (3) ancient time
時代 -- n.

jidai: (1) situation (2) circumstance
事体-- n.
jidai: (1) situation (2) circumstance
事態 -- n.